Measurement of electronegativity of individual atoms using atomic force microscopy
| Project/Area Number |
15H03566
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Thin film/Surface and interfacial physical properties
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
Sugimoto Yoshiaki 東京大学, 大学院新領域創成科学研究科, 准教授 (00432518)
|
|---|
| Project Period (FY) |
2015-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2015: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
|
|---|
| Keywords | 原子間力顕微鏡 / 走査プローブ顕微鏡 / 走査型プローブ顕微鏡 |
|---|
| Outline of Final Research Achievements |
Non-contact atomic force microscopy (AFM) is one of the most powerful imaging techniques. Using AFM, one can measure individual atomic forces between the tip apex atoms and surface atoms. This unique technique allows us to verify the nature of the chemical bond established by Pauling along with the progress of quantum chemistry. Understanding the individual chemical bonds can be applied to atomic level surface analysis such as chemical identification and characterization of single atoms on various surfaces.
We characterize individual chemical bonding force/energy by site-specific force spectroscopy. Various surface atoms with dangling bonds were prepared on the Si(111)-(7x7) surfaces. Dependence of the covalent bonding force/energy on different chemical species was systematically obtained. We also successfully characterized the polar bond. This polar bonding energy between two atoms with different electronegativity can be explained by Pauling’s model.
|
Report
(4 results)
Research Products
(91 results)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Journal Article] Interplay between switching driven by the tunneling current and atomic force of a bistable four-atom Si quantum dot2015
Author(s)
S. Yamazaki, K. Maeda, Y. Sugimoto, M. Abe, V. Zobac, P. Pou, L. Rodrigo, P. Mutombo, R. Perez, P. Jelinek, and S. Morita
-
Journal Title
Nano Letters
Volume: 15
Issue: 7
Pages: 4356-4363
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Interaction between adjacent twin Si4 atom switches2016
Author(s)
S. Yamazaki, K. Maeda, Y. Sugimoto, M. Abe, P. Pou, L. Rodrigo, R. Perez, P. Mutombo, P. Jelinek, S. Morita
Organizer
13th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures
Related Report
Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Chiral Switch Operated at Room Temperature2015
Author(s)
E. Inami, I. Hamada, K. Ueda, M. Abe, S. Morita and Y. Sugimoto
Organizer
23th International Colloquium on Scanning Probe Microscopy (ICSPM23)
Place of Presentation
Hilton Niseko Villege（北海道虻田郡）
Year and Date
2015-12-10
Related Report
Int'l Joint Research / Invited
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Chiral switch operated at room temperature2015
Author(s)
E. Inami, I. Hamada, K. Ueda, M. Abe, S. Morita and Y. Sugimoto
Organizer
International Workshop on Molecular Architectonics(IWMA 2015)
Place of Presentation
Shiretoko Grand Hotel（北海道斜里郡）
Year and Date
2015-08-03
Related Report
Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
